¹H NMR (400 MHz, CDCl₃) δ 7.97 – 7.72 (m, 3H), 7.65 (s, 1H), 7.59 – 7.37 (m, 3H), 7.25 (d, J = 13.0 Hz, 1H), 6.04 (d, J = 13.0 Hz, 1H), 3.80 (s, 3H). ¹³C NMR (101 MHz, CDCl₃) δ 149.28, 133.92, 133.86, 131.99, 128.14, 127.61, 127.39, 126.14, 124.96, 123.70, 123.29, 105.33, 56.63. GC-MS (m/z): 184。